TY  - BOOK
AU  - Bhushan, Yadukul 
AU  - Agarwal Om Prakash
TI  - Vyavasaye sangathan ke siddhant 
U1  - 658.1, B60VS 
PY  - 1979///
CY  - New Delhi
PB  - New Delhi, Sultan Chand & Sons Sultan Chand & Sons
ER  -